Attempt to synchronized logic random seed

core/src/mindustry/logic/GlobalConstants.java

@@ -2,6 +2,7 @@ package mindustry.logic;
 
 import arc.*;
 import arc.files.*;
+import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
 import mindustry.*;
@@ -18,6 +19,8 @@ import java.io.*;
 public class GlobalConstants{
     public static final int ctrlProcessor = 1, ctrlPlayer = 2, ctrlFormation = 3;
     public static final ContentType[] lookableContent = {ContentType.block, ContentType.unit, ContentType.item, ContentType.liquid};
+    /** Global random state. */
+    public static final Rand rand = new Rand();
 
     private ObjectIntMap<String> namesToIds = new ObjectIntMap<>();
     private Seq<Var> vars = new Seq<>(Var.class);

core/src/mindustry/logic/LogicOp.java

@@ -34,13 +34,13 @@ public enum LogicOp{
     angle("angle", true, (x, y) -> Angles.angle((float)x, (float)y)),
     len("len", true, (x, y) -> Mathf.dst((float)x, (float)y)),
     noise("noise", true, (x, y) -> Simplex.raw2d(0, x, y)),
-    abs("abs", a -> Math.abs(a)),
+    abs("abs", a -> Math.abs(a)), //not a method reference because it fails to compile for some reason
     log("log", Math::log),
     log10("log10", Math::log10),
     floor("floor", Math::floor),
     ceil("ceil", Math::ceil),
     sqrt("sqrt", Math::sqrt),
-    rand("rand", d -> Mathf.rand.nextDouble() * d),
+    rand("rand", d -> GlobalConstants.rand.nextDouble() * d),
 
     sin("sin", d -> Math.sin(d * Mathf.doubleDegRad)),
     cos("cos", d -> Math.cos(d * Mathf.doubleDegRad)),